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Diffstat (limited to 'hw/acpi/ghes.c')
-rw-r--r--hw/acpi/ghes.c240
1 files changed, 138 insertions, 102 deletions
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index e9511d9..b85bb48 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -28,15 +28,12 @@
#include "hw/nvram/fw_cfg.h"
#include "qemu/uuid.h"
-#define ACPI_GHES_ERRORS_FW_CFG_FILE "etc/hardware_errors"
-#define ACPI_GHES_DATA_ADDR_FW_CFG_FILE "etc/hardware_errors_addr"
+#define ACPI_HW_ERROR_FW_CFG_FILE "etc/hardware_errors"
+#define ACPI_HW_ERROR_ADDR_FW_CFG_FILE "etc/hardware_errors_addr"
/* The max size in bytes for one error block */
#define ACPI_GHES_MAX_RAW_DATA_LENGTH (1 * KiB)
-/* Now only support ARMv8 SEA notification type error source */
-#define ACPI_GHES_ERROR_SOURCE_COUNT 1
-
/* Generic Hardware Error Source version 2 */
#define ACPI_GHES_SOURCE_GENERIC_ERROR_V2 10
@@ -184,51 +181,24 @@ static void acpi_ghes_build_append_mem_cper(GArray *table,
build_append_int_noprefix(table, 0, 7);
}
-static int acpi_ghes_record_mem_error(uint64_t error_block_address,
- uint64_t error_physical_addr)
+static void
+ghes_gen_err_data_uncorrectable_recoverable(GArray *block,
+ const uint8_t *section_type,
+ int data_length)
{
- GArray *block;
-
- /* Memory Error Section Type */
- const uint8_t uefi_cper_mem_sec[] =
- UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \
- 0xED, 0x7C, 0x83, 0xB1);
-
/* invalid fru id: ACPI 4.0: 17.3.2.6.1 Generic Error Data,
* Table 17-13 Generic Error Data Entry
*/
QemuUUID fru_id = {};
- uint32_t data_length;
-
- block = g_array_new(false, true /* clear */, 1);
-
- /* This is the length if adding a new generic error data entry*/
- data_length = ACPI_GHES_DATA_LENGTH + ACPI_GHES_MEM_CPER_LENGTH;
- /*
- * It should not run out of the preallocated memory if adding a new generic
- * error data entry
- */
- assert((data_length + ACPI_GHES_GESB_SIZE) <=
- ACPI_GHES_MAX_RAW_DATA_LENGTH);
/* Build the new generic error status block header */
acpi_ghes_generic_error_status(block, ACPI_GEBS_UNCORRECTABLE,
0, 0, data_length, ACPI_CPER_SEV_RECOVERABLE);
/* Build this new generic error data entry header */
- acpi_ghes_generic_error_data(block, uefi_cper_mem_sec,
+ acpi_ghes_generic_error_data(block, section_type,
ACPI_CPER_SEV_RECOVERABLE, 0, 0,
ACPI_GHES_MEM_CPER_LENGTH, fru_id, 0);
-
- /* Build the memory section CPER for above new generic error data entry */
- acpi_ghes_build_append_mem_cper(block, error_physical_addr);
-
- /* Write the generic error data entry into guest memory */
- cpu_physical_memory_write(error_block_address, block->data, block->len);
-
- g_array_free(block, true);
-
- return 0;
}
/*
@@ -236,7 +206,7 @@ static int acpi_ghes_record_mem_error(uint64_t error_block_address,
* Initialize "etc/hardware_errors" and "etc/hardware_errors_addr" fw_cfg blobs.
* See docs/specs/acpi_hest_ghes.rst for blobs format.
*/
-void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker)
+static void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker)
{
int i, error_status_block_offset;
@@ -264,7 +234,7 @@ void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker)
ACPI_GHES_MAX_RAW_DATA_LENGTH * ACPI_GHES_ERROR_SOURCE_COUNT);
/* Tell guest firmware to place hardware_errors blob into RAM */
- bios_linker_loader_alloc(linker, ACPI_GHES_ERRORS_FW_CFG_FILE,
+ bios_linker_loader_alloc(linker, ACPI_HW_ERROR_FW_CFG_FILE,
hardware_errors, sizeof(uint64_t), false);
for (i = 0; i < ACPI_GHES_ERROR_SOURCE_COUNT; i++) {
@@ -273,23 +243,31 @@ void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker)
* corresponding "Generic Error Status Block"
*/
bios_linker_loader_add_pointer(linker,
- ACPI_GHES_ERRORS_FW_CFG_FILE, sizeof(uint64_t) * i,
- sizeof(uint64_t), ACPI_GHES_ERRORS_FW_CFG_FILE,
- error_status_block_offset + i * ACPI_GHES_MAX_RAW_DATA_LENGTH);
+ ACPI_HW_ERROR_FW_CFG_FILE,
+ sizeof(uint64_t) * i,
+ sizeof(uint64_t),
+ ACPI_HW_ERROR_FW_CFG_FILE,
+ error_status_block_offset +
+ i * ACPI_GHES_MAX_RAW_DATA_LENGTH);
}
/*
* tell firmware to write hardware_errors GPA into
* hardware_errors_addr fw_cfg, once the former has been initialized.
*/
- bios_linker_loader_write_pointer(linker, ACPI_GHES_DATA_ADDR_FW_CFG_FILE,
- 0, sizeof(uint64_t), ACPI_GHES_ERRORS_FW_CFG_FILE, 0);
+ bios_linker_loader_write_pointer(linker, ACPI_HW_ERROR_ADDR_FW_CFG_FILE, 0,
+ sizeof(uint64_t),
+ ACPI_HW_ERROR_FW_CFG_FILE, 0);
}
/* Build Generic Hardware Error Source version 2 (GHESv2) */
-static void build_ghes_v2(GArray *table_data, int source_id, BIOSLinker *linker)
+static void build_ghes_v2(GArray *table_data,
+ BIOSLinker *linker,
+ enum AcpiGhesNotifyType notify,
+ uint16_t source_id)
{
uint64_t address_offset;
+
/*
* Type:
* Generic Hardware Error Source version 2(GHESv2 - Type 10)
@@ -316,21 +294,13 @@ static void build_ghes_v2(GArray *table_data, int source_id, BIOSLinker *linker)
build_append_gas(table_data, AML_AS_SYSTEM_MEMORY, 0x40, 0,
4 /* QWord access */, 0);
bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE,
- address_offset + GAS_ADDR_OFFSET, sizeof(uint64_t),
- ACPI_GHES_ERRORS_FW_CFG_FILE, source_id * sizeof(uint64_t));
+ address_offset + GAS_ADDR_OFFSET,
+ sizeof(uint64_t),
+ ACPI_HW_ERROR_FW_CFG_FILE,
+ source_id * sizeof(uint64_t));
- switch (source_id) {
- case ACPI_HEST_SRC_ID_SEA:
- /*
- * Notification Structure
- * Now only enable ARMv8 SEA notification type
- */
- build_ghes_hw_error_notification(table_data, ACPI_GHES_NOTIFY_SEA);
- break;
- default:
- error_report("Not support this error source");
- abort();
- }
+ /* Notification Structure */
+ build_ghes_hw_error_notification(table_data, notify);
/* Error Status Block Length */
build_append_int_noprefix(table_data, ACPI_GHES_MAX_RAW_DATA_LENGTH, 4);
@@ -344,9 +314,11 @@ static void build_ghes_v2(GArray *table_data, int source_id, BIOSLinker *linker)
build_append_gas(table_data, AML_AS_SYSTEM_MEMORY, 0x40, 0,
4 /* QWord access */, 0);
bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE,
- address_offset + GAS_ADDR_OFFSET,
- sizeof(uint64_t), ACPI_GHES_ERRORS_FW_CFG_FILE,
- (ACPI_GHES_ERROR_SOURCE_COUNT + source_id) * sizeof(uint64_t));
+ address_offset + GAS_ADDR_OFFSET,
+ sizeof(uint64_t),
+ ACPI_HW_ERROR_FW_CFG_FILE,
+ (ACPI_GHES_ERROR_SOURCE_COUNT + source_id)
+ * sizeof(uint64_t));
/*
* Read Ack Preserve field
@@ -359,17 +331,21 @@ static void build_ghes_v2(GArray *table_data, int source_id, BIOSLinker *linker)
}
/* Build Hardware Error Source Table */
-void acpi_build_hest(GArray *table_data, BIOSLinker *linker,
+void acpi_build_hest(GArray *table_data, GArray *hardware_errors,
+ BIOSLinker *linker,
const char *oem_id, const char *oem_table_id)
{
AcpiTable table = { .sig = "HEST", .rev = 1,
.oem_id = oem_id, .oem_table_id = oem_table_id };
+ build_ghes_error_table(hardware_errors, linker);
+
acpi_table_begin(&table, table_data);
/* Error Source Count */
build_append_int_noprefix(table_data, ACPI_GHES_ERROR_SOURCE_COUNT, 4);
- build_ghes_v2(table_data, ACPI_HEST_SRC_ID_SEA, linker);
+ build_ghes_v2(table_data, linker,
+ ACPI_GHES_NOTIFY_SEA, ACPI_HEST_SRC_ID_SEA);
acpi_table_end(linker, &table);
}
@@ -378,70 +354,130 @@ void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s,
GArray *hardware_error)
{
/* Create a read-only fw_cfg file for GHES */
- fw_cfg_add_file(s, ACPI_GHES_ERRORS_FW_CFG_FILE, hardware_error->data,
+ fw_cfg_add_file(s, ACPI_HW_ERROR_FW_CFG_FILE, hardware_error->data,
hardware_error->len);
/* Create a read-write fw_cfg file for Address */
- fw_cfg_add_file_callback(s, ACPI_GHES_DATA_ADDR_FW_CFG_FILE, NULL, NULL,
- NULL, &(ags->ghes_addr_le), sizeof(ags->ghes_addr_le), false);
+ fw_cfg_add_file_callback(s, ACPI_HW_ERROR_ADDR_FW_CFG_FILE, NULL, NULL,
+ NULL, &(ags->hw_error_le), sizeof(ags->hw_error_le), false);
ags->present = true;
}
-int acpi_ghes_record_errors(uint8_t source_id, uint64_t physical_address)
+static void get_hw_error_offsets(uint64_t ghes_addr,
+ uint64_t *cper_addr,
+ uint64_t *read_ack_register_addr)
+{
+ if (!ghes_addr) {
+ return;
+ }
+
+ /*
+ * non-HEST version supports only one source, so no need to change
+ * the start offset based on the source ID. Also, we can't validate
+ * the source ID, as it is stored inside the HEST table.
+ */
+
+ cpu_physical_memory_read(ghes_addr, cper_addr,
+ sizeof(*cper_addr));
+
+ *cper_addr = le64_to_cpu(*cper_addr);
+
+ /*
+ * As the current version supports only one source, the ack offset is
+ * just sizeof(uint64_t).
+ */
+ *read_ack_register_addr = ghes_addr + sizeof(uint64_t);
+}
+
+static void ghes_record_cper_errors(const void *cper, size_t len,
+ uint16_t source_id, Error **errp)
{
- uint64_t error_block_addr, read_ack_register_addr, read_ack_register = 0;
- uint64_t start_addr;
- bool ret = -1;
+ uint64_t cper_addr = 0, read_ack_register_addr = 0, read_ack_register;
AcpiGedState *acpi_ged_state;
AcpiGhesState *ags;
- assert(source_id < ACPI_HEST_SRC_ID_RESERVED);
+ if (len > ACPI_GHES_MAX_RAW_DATA_LENGTH) {
+ error_setg(errp, "GHES CPER record is too big: %zd", len);
+ return;
+ }
acpi_ged_state = ACPI_GED(object_resolve_path_type("", TYPE_ACPI_GED,
NULL));
- g_assert(acpi_ged_state);
+ if (!acpi_ged_state) {
+ error_setg(errp, "Can't find ACPI_GED object");
+ return;
+ }
ags = &acpi_ged_state->ghes_state;
- start_addr = le64_to_cpu(ags->ghes_addr_le);
+ assert(ACPI_GHES_ERROR_SOURCE_COUNT == 1);
+ get_hw_error_offsets(le64_to_cpu(ags->hw_error_le),
+ &cper_addr, &read_ack_register_addr);
+
+ if (!cper_addr) {
+ error_setg(errp, "can not find Generic Error Status Block");
+ return;
+ }
+
+ cpu_physical_memory_read(read_ack_register_addr,
+ &read_ack_register, sizeof(read_ack_register));
+
+ /* zero means OSPM does not acknowledge the error */
+ if (!read_ack_register) {
+ error_setg(errp,
+ "OSPM does not acknowledge previous error,"
+ " so can not record CPER for current error anymore");
+ return;
+ }
+
+ read_ack_register = cpu_to_le64(0);
+ /*
+ * Clear the Read Ack Register, OSPM will write 1 to this register when
+ * it acknowledges the error.
+ */
+ cpu_physical_memory_write(read_ack_register_addr,
+ &read_ack_register, sizeof(uint64_t));
+
+ /* Write the generic error data entry into guest memory */
+ cpu_physical_memory_write(cper_addr, cper, len);
+}
- if (physical_address) {
+int acpi_ghes_memory_errors(uint16_t source_id, uint64_t physical_address)
+{
+ /* Memory Error Section Type */
+ const uint8_t guid[] =
+ UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \
+ 0xED, 0x7C, 0x83, 0xB1);
+ Error *errp = NULL;
+ int data_length;
+ GArray *block;
- if (source_id < ACPI_HEST_SRC_ID_RESERVED) {
- start_addr += source_id * sizeof(uint64_t);
- }
+ block = g_array_new(false, true /* clear */, 1);
- cpu_physical_memory_read(start_addr, &error_block_addr,
- sizeof(error_block_addr));
+ data_length = ACPI_GHES_DATA_LENGTH + ACPI_GHES_MEM_CPER_LENGTH;
+ /*
+ * It should not run out of the preallocated memory if adding a new generic
+ * error data entry
+ */
+ assert((data_length + ACPI_GHES_GESB_SIZE) <=
+ ACPI_GHES_MAX_RAW_DATA_LENGTH);
- error_block_addr = le64_to_cpu(error_block_addr);
+ ghes_gen_err_data_uncorrectable_recoverable(block, guid, data_length);
- read_ack_register_addr = start_addr +
- ACPI_GHES_ERROR_SOURCE_COUNT * sizeof(uint64_t);
+ /* Build the memory section CPER for above new generic error data entry */
+ acpi_ghes_build_append_mem_cper(block, physical_address);
- cpu_physical_memory_read(read_ack_register_addr,
- &read_ack_register, sizeof(read_ack_register));
+ /* Report the error */
+ ghes_record_cper_errors(block->data, block->len, source_id, &errp);
- /* zero means OSPM does not acknowledge the error */
- if (!read_ack_register) {
- error_report("OSPM does not acknowledge previous error,"
- " so can not record CPER for current error anymore");
- } else if (error_block_addr) {
- read_ack_register = cpu_to_le64(0);
- /*
- * Clear the Read Ack Register, OSPM will write it to 1 when
- * it acknowledges this error.
- */
- cpu_physical_memory_write(read_ack_register_addr,
- &read_ack_register, sizeof(uint64_t));
+ g_array_free(block, true);
- ret = acpi_ghes_record_mem_error(error_block_addr,
- physical_address);
- } else
- error_report("can not find Generic Error Status Block");
+ if (errp) {
+ error_report_err(errp);
+ return -1;
}
- return ret;
+ return 0;
}
bool acpi_ghes_present(void)
generated by cgit v1.1 at 2025-07-02 02:56:10 +0000